buster-backports/.../Packages.gz not in Release
When using (some old version of) DAK to mirror buster-backports, I am getting the following error:
dists/buster-backports/main/binary-amd64/Packages.gz exists locally but not in Release
Won't mirror without dists/buster-backports/main/binary-amd64/Packages.gz signature in Release at /usr/bin/debmirror line 2269.
Looking at the Release file, it does not contain Packages.gz, whereas stretch-backports and plain buster do.
Did the Release format change, or is this accidental and should/will be fixed?